Train hose-coupling.



A. H. MOMASTERS.

TRAIN HOSE COUPLING. APPLICATION FILED MAY 6, 1909,

939,070. Patented Nov. 2, 1909.

m 44 J El lizmmni nz A. H. MUMASTBRS.

TRAIN HOSE COUPLING.

APPLIOATION FILED MAYG, 1909.

' 939,070. Patented Nov, 2, 1909.

2 SHEETS-SHEET 2.

al toznuaa UNITED sTATEs PATENT orrion ALVIN I-IORLD McMASTERS, orBELLAIRE, OHIO, AssrGNcn or ONE-HALF To MEYER l-IERZBERG, or BELLAIRE,OHIO.

TRAIN HOSE-COUPLING.

esomo.

Specification of Letters Patent.

Patented Nov. 2, 1909.

To all whom it may concern:

Be it known that I, ALviN HORLD Molvias'mnas, a citizen of the UnitedStates, residing at Bellaire, in the county of Belmont and Statev ofOhio, have invented certain new and useful Improvements in TrainHose-Coupling; and 1 do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to an automatic hose coupling for railway serviceand has for its object to provide a coupling of this type which willautomatically couple together as the cars come together and thus obviatethe necessity of the brakeman going between the cars which has oftenresulted disastrously.

A further object of the invention is to provide a coupling which willturn on the air as it is coupled together and which will shut oil theair when the coupling is detached. l urthermore by the use of myimproved coupling, should the train happen to break in two the brakeswill be set gradually and not suddenly.

lVith these and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts aswill be more fully described and particularly pointed out in theappended claims.

In the accompanying drawings, Figure 1 is a diagrammatic view showingportions of two cars coupled together; Fig. 2 is a side elevation of onesection of the coupling on an enlarged scale; Fig. 3 is a centrallongitudinal section of Fig. 2; Fig. 4t is a horizontal section taken online 44. of Fig. 3, showing the coupling in plan. Fig. 5 is a transversesection taken on line 5-5 of Fig. 3.

Referring to the drawings for a more particular description of theinvention, 1 and 2 indicate the cars, and 3 and 1 the hose couplingmembers, each of which members is carried by one of the cars and isadapted to be coupled to the other member when the cars come together.Each coupling member comprises a cylindrical casing, 5, the inner end ofwhich is pivotally supported from the draw bar of the adjacent car bythe hanger, 6, depending from the draw bar plate, 7, which is screwed orotherwise attached to the draw bar. The outer or opposite end of thecasing is supported from the draw bar by a pair of laterally spacedsupporting bolts, 8, which depend from the plate, 9, which is secured tothe draw bar. The lower ends of the bolts, 8, extend through the slottedends, as 9, of a fiat attaching bar, 10, which is screwed or otherwiseremovably attached to an enlargement 11 of the casing, said enlargementhaving a flat top surface, 12, which forms a seat for the attaching bar,10. The inner end of the cas ing, 5, is provided with an annularshoulder or flange 13, which forms a seat for the outer edge of thecasing head, 14, said head being secured in position by bolts and nuts,15 and 16, respectively, and the screws, 17, the latter passing throughthe head, 14:, and screwing into the inner end of the casing, 5. Acoupling nut, 18, is also mounted in the inner end of the casing, 5, towhich is screwed the inner end, as 19, of the tubular steel piston, 20,the outer end of which has a screwed connection with the reducedextension, 21, of the coupling head, 22. A coil spring, 23, is arrangedin the casing, 5, to normally hold the piston, 20, in its extremeoutward position. Each of the coupling heads is provided with a centraltubular bore or passage, 2e, and is approximately in the form of acylinder having an inclined face, 25, from the outer end of whichextends a longitudinal tongue, 26, and in which is formed a longitudinaltapering recess, 27.

lVhen the coupling heads are coupled together the tongue of one headfits in the recess of the other head while the bores or passages, 24,thereof register. The hose coupling 28, is connected with the outer endof the casing, 5, of each member of the coup-- ling by the coupling andnipple, 29 and 30, respectively, the former of which forms a valvecasing for the valve, 31. This valve, 31, is provided with alongitudinal arm, 32, having the offset portion, 33, to which isconnected the inner slotted end, as 34, of a longitudinal operating bar,35, the outer end of which has pivoted connection, as at 36, with theinner end of the coupling head, 22.

In practice, when the cars come together the impact of the couplingheads causes the piston rods, 20, to move inwardly to a certain extentagainst the action of the coil springs, 23, and the operating bars, 35,to

swing the arms, 32 of the valves, 31, laterally to open the latter inorder to establish com munication between the hose, 28, and the casings,5. or detached the coupling heads and piston 5 rods, 20, are forced intotheir extreme outward position by the springs, 23, while the arms, 32,of the valves are moved into cutoif position,

From the foregoing description, taken in 19 connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation. Various changes in the form, proportion and the minordetails of construction may be resorted to without departing from theprinciple or sacrificing any of the advan tages of the invention.

Having thus described my invention, what 29 I claim is:

1. A device of the class described comprising an air casing, a tubularpiston rod having its inner end extending therein, a

coupling nut screwing on the inner end of 25 the piston rod to limit theoutward movement thereof, a coupling head at the outer end of the pistonrod, a spring in the casing tending to hold the piston rod in extendedposition, a valve between the hose and the 3G inner end of the casing,and connections for moving the valve into cut-off position when thepiston rod is extended and to move the valve into its other positionwhen the piston rod is forced inwardly.

WVhen the cars are uncoupled,

2. A hose coupling comprising a pivotally mounted air casing, a pistonrod having one end movable in the casing, a spring to hold the pistonrod in extended position, a coup= ling head at the outer end of thepiston rod, and means to y'ieldably support the free end of the aircasing, said means comprising an attaching plate secured to the top ofthe casing, a pair of laterally spaced supporting bolts supportedbeneath the car and extending through the ends of the attaching plate,nuts on theends of the supporting bolts, and coil springs around thesupporting bolts between the attaching plate and car.

3. A hose coupling comprising air casings, adapted to be supportedbeneath adjacent cars, piston rods extending through one end of saidcasings, resilient means in the casings to hold the piston rodsextended, and coupling heads at the outer ends of the piston rods, eachof said coupling heads having a longitudinal recess and a longitudinaltongue at opposite sides, the recess of one coupling head being adaptedto receive the tongue of the other coupling head when brought together.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ALVIN HORLD MoMASTERS.

Witnesses FRANK S. MASON,

JAMES L. LANCASTER.

